Hystrichosphaeridium baciferum
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"baciferum" (Eisenack, 1934, p.66, pl.4, figs.20-21) Eisenack, 1938b, p.189. Holotype: Eisenack, 1934, pl.4, fig.20, lost according to Eisenack (1962, p.356). Neotype: Eisenack, 1962, pl.44, fig.3, designated by Eisenack (1962, p.356). NOW Bacisphaeridium (Appendix A). Originally Bion (Appendix A), subsequently Hystrichosphaeridium, thirdly Veryhachium (combination not validly published; Appendix A), fourthly (and now) Bacisphaeridium (Appendix A), fifthly Baltisphaeridium (combination not validly published; Appendix A). Age: Late Ordovician.
Parent: Hystrichosphaeridium
